Q1 of 79 Page 379

Light is

From the double slit experiment, we get to know that light has wave nature. While from the photoelectric effect, we know that it has particle nature as well. Hence, option (C) is correct.

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If the separation between the slits in a Young’s double slit experiment is increased, what happens to the fringe-width? If the separation is increased too much, will the fringe pattern remain detectable?

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